Insert-type injection pipe joint and production process thereof

• Main Authors: PAN DAREN, ZHAO JIWEI, TANG YI
• Format: Patent
• Language: English
• Published: 27.05.2015
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PIPES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention relates to an insert-type injection pipe joint. The insert-type injection pipe joint comprises an insert and a pipe main body part, wherein the pipe main body part comprises a combination part and a connecting part; the combination part is fixedly connected with the connecting part in an airtight manner; the insert is connected with the connecting part in a sleeving manner; the insert-type injection pipe is characterized in that an annular bulge is arranged on the outside wall of the insert; the annular bulge surrounds the periphery of the outer surface of the insert; a groove which corresponds to the annular bulge is formed in the inside wall of the connecting part; the groove surrounds the periphery of the inside wall of the connecting part; the annular bulge is embedded into the groove; the contact area between the insert and the connecting part can be increased by embedding the annular bulge into the groove, so that the combination strength of the pipe joint can be improved; the insert is combined with the pipe main body part in an injection mode, and the machining difficulty cannot be increased because of the thickness of the wall of the insert.